ÅBO-BJÖRNEBORG, a province occupying the S.W. corner of Finland and including the Åland islands. It has a total area of 24,171 square kilometres and a population (1900) of 447,098, of whom 379,622 spoke Finnish and 67,260 Swedish; 446,900 were of the Lutheran religion. The province occupies a prominent position in Finland for its manufacture of cottons, sugar refinery, wooden goods, metals, machinery, paper, &c. Its chief towns are: Åbo (pop. 42,639), Björneborg (16,053), Raumo (5501), Nystad (4165), Mariehamn (1171), Nådendal (917).